Vehicular spreader



Feb. 12, 1963 c. VAN DER LELY ETAL VEHICULAR SPREADER Original FiledMarch 50, 1954 United States Patent Gfihcc Efiiliifil Patented Feb. l2,19%;?

3,h77,35t VEHPCULAR SPREADER Cornelis van der Lely, Zug, Switzerland,and Ary van der Leiy, Maasland, Netherlands, assignors to C. van derLely NW1, Maasland, l'ietherlands, a Dutch limited company Griginalapplication Mar. 39, 1954, Ser. No. 419,825, new Patent No. 2,%%,43ti,dated Apr. 18, 1961. Divided and this application Mar. 30, 1960, Ser.No. 18,616 Claims priority, application Netherlands Apr. 2, 1953 8Qlaims. (Cl. 275-7) This invention is a division of our applicationSerial No. 419,825, filed March 30, 1954, now Patent No. 2,980,- 439,granted April 18, 1961, and relates to a vehicular device for spreadingstrewable material over a strip-like area of ground during groundtraversing movement of the device, the device being of the typecomprising a supporting frame and at least one container for thematerial to be strewn mounted on said frame and having at least oneoutlet openin it is an object of the present invention to provide asimple device of the above indicated kind with which an evendistribution of the material can be obtained. According to the inventionthis is attained by the fact that beneath said outlet opening a disc islocated which is rotatable on a substantially vertical axis at a lowspeed to transport the material supplied through said outlet opening toa spreading member being located beneath said disk, said spreadingmember being coupled to driving means and throwing out the materialreceived from the disc over said strip-like area.

A further object of the invention is to provide a guide member above thepart of the said disk located outside of the container, which guidemember guides the material in the direction of the periphery of thedisk, owing to which a good supply of the material to the spreadingmember is insured.

A particularly favorable embodiment of the device is obtained whenaccording to the invention the spreading member is provided withdiverging gutters, the lower ends of which cover the entire width of thesaid strip-like area, whereas the upper ends are narrower and arelocated near the said disk.

Further objects, features and details of the invention will appear fromthe following description with relenence to the accompanying drawings,in which:

FIG. 1 is a plan view of a device according to the invention,

FIG. 2 is a side view of said device,

H6. 3 is, on an enlarged scale, a side view of the device according toFIG. 1, in which View the running wheels have been omitted and someparts are shown in section, and

FIG. 4 shows a detail of a portion of FF. 3 partly in section andenlarge The device shown in the drawing is intended to be connected to atractor by means of a draw arm. Said device is supported by two wheels 1mounted on an axle 2. To the axle 2 are connected the draw arm 3 andsupporting members, such as the bar l, for a container 5. This container5 is provided at its lower end with two semi-circular openings 6situated in the same horizontal plane. In order to secure anunobstructed flow of the material towards said openin s, several wallparts of the contai er are shaped conically. The semicircular openingsare closed by horizontal disks '7 rotatable on vertical axles Directlyover the axles 3 is located the vertical front wall 9 of the container 5so that only about half of each disk 7 is located under the container 5,which half of each disk constitutes the bottom of the container, theother half of each disk constituting a supporting member for thematerial flowing from the container. When the device is travelling andsuitable transmission means between the wheels 2 and the disks 7 are putinto operation, the disks 7 will rotate, viewed from above, slowly inclockwise direction, thereby carrying along with them material from thecontainer through a narrow slit-shaped outlet opening 23 to the outside,said slit being left between the lower edge 2 of the wall 9 and thedisks '7. Gver the foremost halves of the disks 7, which halvesconstitute supporting members for the material, a horizontal shaft it ismounted in bearings rigidly connected to the bars 29, the movement ofsaid shaft iii being derived by means of a rope or endless member 11from a shaft 12 coupled with the motor (not shown) of the tractor. Theshaft it) rotates at a relatively high speed. During this rotationshovel-like throwing members i3 and 1 fixed upon the shaft lit move fromtheir lower position forwa ds, thereby throwing material ransported bythe disks from the outlet opening within the reach of the shovel-likemembers forwardly and upwardly into caps 15. The shovels i3 will throwthe material which upon leaving the container is situated farthest fromthe axis of the disk in question. The material which is nearer to saidaxis is guided by curved guiding members 16 to the shovels id. Theguiding member to is curved in the direction of rotation of the disk 7reckoned from said axis.

Under the portions of the caps 15 which extend beyond the edge of thedisks 7 is located a spreading member in the form or a forwardlyinclined plate 17, the horizontal upper edge of which is located beneathsaid disks and upon which diverging gutters 18 are formed having theirlower ends situated on a horizontal straight line. The lower ends of thegutters it? cover the entire width of the area to be supplied, whereasthe upper ends are narrower and constitute two groups having the widthof a cap 13 and being located exactly under said caps, by which thegutters are equally supplied with material. The plate 17, which is madeas light in weight as possible, is supported by two leaf springs 19 themiddles of which are connected to the ends or" a horizontal bar 2'6fixed to the draw arm 3. The shaft 12 drives a shaking device 21 conprising an eccentric disk 25 and a ring as connected to a driving rod27, by means of which the plate It? is caused to perform reciprocatingmotion transversely to the direction of travel. When suitably adjusted,this device insures a particul r uniform distribution or" the materialover the area of the ground.

What we claim is:

l. A vehicular device for spreading strewable material over a strip-likearea of the ground during ground traversing movement of the device,comprising a supporting frame, at least one container for the materialto be strewn mounted on said frame and having at least one outletopening, a disk located in part beneath said outlet opening andconstituting a bottom therefor such that material in said container isfully supported on said disk, said disk being rotatable on asubstantially vertical axis, means for rotating said disk about saidaxis at a low speed to transport material on said disk in undisturbedmanner externally of said container, a spreading member located beneathsaid disk to receive the material from said disk, said spreading memberand said disk being spaced from one another in a direction parallel tothe direction of travel, a guide member above a part of said disk andlocated outside the container, said guide member being positionedrelative to said disk to guide material thereon towards the periphery ofthe disk, th material at the periphery of the disk being transferredonto the spreading member, the device further comprising driving meanscoupled to said spreading member whereby the latter throws materialreceived from the disk over said strip-like area.

2. A device as defined in claim 1, wherein the guide member extends fromthe axis of the disc along a curved path to the periphery of the discand is curved from the said axis. in the direction of rotation of thedisc.

3. A device as defined in claim 1, wherein the disc has a periphery, thedevice comprising a disc, a throwing member mounted adjacent theperiphery of the disc for throwing the material from the disc onto thespreading member.

4. A device as defined in claim 3, comprising a horizontal axle, saidthrowing member being mounted on said horizontal axle.

5. A device as defined in claim 3, comprising caps near said throwingmember, into which caps the material is thrown by said throwing member.

6. A vehicular device for spreading strewable material over a strip-likearea of the ground during ground traversing movement of the device,comprising a supporting frame, at least one container on said frame forthe material to be strewn and having at least one outlet opening, a disklocated beneath said outlet opening, said disc being rotatable on asubstantially vertical'axis at a low speed to transport materialsupplied through said outlet opening, a spreading member located beneathsaid disk to receive material therefrom, said spreading member includingdiverging gutters having lower ends which cover-the entire width of thesaid striplike area, said gutters having upper ends which are narrowerand are located near the said disk, and driving means, said spreadingmember being coupled to said driving means and being driven thereby tothrow material received from the disk over said striplike area.

7. A device as defined in claim 6, wherein said driving means includes ashaking device and means coupling said spreading member to said shakingdevice for causing the spreading member to perform a reciprocatingmovement transversely to the direction of travel.

8. A device for spreading strewable material over a strip-like areaduring ground traversing movement, said device comprising a supportingframe, at least one container on said frame and adapted foraccommodating the material to be strewn, said container having at leastone outlet opening, a disk located in part beneath said outlet openingto constitute a bottom therefor such that material in said container isfreely supported on said disk, said disk being rotatable on asubstantially vertical axis, means for rotating said disk about saidaxis for transporting the material thereon externally of the con tainer,a spreading member located beneath said disk to receive said materialtherefrom, driving means coupled to said spreading member which isdriven there-by to throw material received from the disk over saidstriplike area and a guide member associated with said disk andextending from the aXis of the disk along a curved path to the peripheryof the disk and'being curved from the said axis in the direction ofrotation of said-disk.

References Cited in the file of this patent UNITED STATES PATENTS

1. A VEHICULAR DEVICE FOR SPREADING STREWABLE MATERIAL OVER A STRIP-LIKEAREA OF THE GROUND DURING GROUND TRAVERSING MOVEMENT OF THE DEVICE,COMPRISING A SUPPORTING FRAME, AT LEAST ONE CONTAINER FOR THE MATERIALTO BE STREWN MOUNTED ON SAID FRAME AND HAVING AT LEAST ONE OUTLETOPENING, A DISK LOCATED IN PART BENEATH SAID OUTLET OPENING ANDCONSTITUTING A BOTTOM THEREFOR SUCH THAT MATERIAL IN SAID CONTAINER ISFULLY SUPPORTED ON SAID DISK, SAID DISK BEING ROTATABLE ON ASUBSTANTIALLY VERTICAL AXIS, MEANS FOR ROTATING SAID DISK ABOUT SAIDAXIS AT A LOW SPEED TO TRANSPORT MATERIAL ON SAID DISK IN UNDISTURBEDMANNER EXTERNALLY OF SAID CONTAINER, A SPREADING MEMBER LOCATED BENEATHSAID DISK TO RECEIVE THE MATERIAL FROM SAID DISK, SAID SPREADING MEMBERAND SAID DISK BEING SPACED FROM ONE ANOTHER IN A DIRECTION PARALLEL TOTHE DIRECTION OF TRAVEL, A GUIDE MEMBER ABOVE A PART OF SAID DISK ANDLOCATED OUTSIDE THE CONTAINER SAID GUIDE MEMBER BEING POSITIONEDRELATIVE TO SAID DISK TO GUIDE MATERIAL THEREON TOWARDS THE PERIPHERY OFTHE DISK, THE MATERIAL AT THE PERIPHERY OF THE DISK BEING TRANSFERREDONTO THE SPREADING MEMBER, THE DEVICE FURTHER COMPRISING DRIVING MEANSCOUPLED TO SAID SPREADING MEMBER WHEREBY THE LATTER THROWS MATERIALRECEIVED FROM THE DISK OVER SAID STRIP-LIKE AREA.